The Mastigoteuthidae, also known as whip-lash squid, are a family of small deep-sea squid. Approximately 20 known species in six genera are represented, with members found in both the mesopelagic and bathypelagic zone of most oceans. Originally described by Verill in 1881, it was later lowered by Chun (1920) to a subfamily (Mastigoteuthinae) of the Chiroteuthidae. However, Roper et al. (1969) raised it back to the family level, and this has not been changed since. The taxonomy of this family is extremely unstable, and there have been at times one genus, two genera and four subgenera(Salcedo-Vargas & Okutani, 1994), two genera and several 'groups', five genera and one species with an uncertain placement, or six genera.
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Mastigoteuthis is a genus of whip-lash squid containing at least seven valid species. Some teuthologists consider Idioteuthis synonymous with this taxon.
Mastigoteuthis agassizii is a species of whip-lash squid. It is the type species of the genus.
Mastigoteuthis dentata is a species of whip-lash squid.
Mastigoteuthis flammea is a species of whip-lash squid.
Mastigoteuthis glaukopis is a species of whip-lash squid.
Mastigoteuthis grimaldii is a species of whip-lash squid.
Mastigoteuthis magna is a species of whip-lash squid, characterised by a lack of photophores. The skin is heavily pigmented a deep red by a numerous chromatophores.
Mastigoteuthis inermis is a species of whip-lash squid. Richard E. Young and Michael Vecchione consider it to be a junior synonym of the widely distributed M. magna.
Mastigoteuthis psychrophila is a species of whip-lash squid. It was first described by Kir Nazimovich Nesis in 1977, based on four individuals found in Antarctic waters. The largest was 143 mm long. The squid's tentacles are 15 mm in diameter, with 0.15 mm diameter club suckers. Integumental photophores are present upon the head, arms and fins. Although uncertain, it is believed to have more than two series of photophores on the arms, differing from other species in the M. agassizii group. However, this species, like the rest of the family, is badly in need of revision.
Mastigoteuthis pyrodes is a species of whip-lash squid.
Mastigoteuthis schmidti is a species of whip-lash squid.
The genus Callophrys consists of butterflies in the family Lycaenidae. It is apparently not monophyletic, but which of the taxa currently considered junior synonyms of Callophrys are valid genera remains to be determined.
Magnoteuthis microlucens is a species of squid; the most common species of Mastigoteuthis around the main Hawaiian Islands.
Cerion is a genus of small to medium-sized tropical air-breathing land snails, terrestrial pulmonate gastropods in the family Cerionidae, sometimes known as the peanut snails. The genus is endemic to the Caribbean region.
Oliva bifasciata is a species of sea snail, a marine gastropod mollusk in the family Olividae, the olives.
Cephalopods exhibit various dermal structures on their mantles and other parts. These may take the form of conspicuous warts, cushions, papillae or scales, though in many species they are microscopic tubercles. The most elaborate forms are found among the oceanic squid of the order Teuthida.
Tanarthrus is a genus of antlike flower beetles in the family Anthicidae. There are about 15 described species in Tanarthrus.
Eumecostylus, or flax snails, are a genus of very large, air-breathing land snails, terrestrial pulmonate gastropod molluscs in the family Bothriembryontidae.
